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authorThierry Reding <treding@nvidia.com>2015-07-22 17:10:11 -0600
committerTom Warren <twarren@nvidia.com>2015-07-28 10:30:17 -0700
commit8b19dff579759719b83a3dcbeefecd774077dc08 (patch)
tree6139678865af04fad071b98fcc5ea1bbc514cd4c /arch/arm/mach-zynq
parent502a2aff7637d6522f50839b4d9ac253fcb1ea6e (diff)
armv8/cache: Fix page table creation
While generating the page tables, a running integer index is shifted by SECTION_SHIFT (29) and causes overflow for any integer bigger than 7. The page tables therefore alias to the same 8 sections and cause U-Boot to hang once the MMU is enabled. Fix this by making the index a 64-bit unsigned integer and so avoid the overflow. swarren notes: currently "i" ranges from 0..8191 on all ARM64 boards, and "j" varies depending on RAM size; from 4 to 11 for a board with 4GB at physical address 2GB, as some Tegra boards have. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org>
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